package com.itheima.servlet;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.lang.reflect.Method;

public class BaseServlet extends HttpServlet {
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //获取uri地址字符串
        String uri = req.getRequestURI();
        //切割得到方法名称
        String methodName = uri.substring(uri.lastIndexOf("/") + 1);
        try{
        //获取方法对象
        Method method=this.getClass().getDeclaredMethod(methodName,HttpServletRequest.class,HttpServletResponse.class);
        //暴力反射
        method.setAccessible(true);
        method.invoke(this,req,resp);
        }catch (Exception e){
            e.printStackTrace();
        }
    }
}
